*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.layoutTop{
  width: 100%;
  height: 50px;
  background-color: #001529;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo{
  width: 320px;
  height: 40px;
  color: white;
  background-color: #001529;
  font-size: 24px;
  display: flex;
  align-items: center;
}
.logo>span{
  height: 40px;
  line-height: 40px;
  margin-left: 20px;
}
.layoutTop>.userBox{
  color: white;
  display: flex;
  align-items: center;
}
.layoutTop>.userBox>.user{
  margin-left: 15px;
}